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NSR database version of May 21, 2024.

Search: Author = C.L.Bai

Found 30 matches.

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2024YA10      Nuovo Cim. C 47, 37 (2024)

M.J.Yang, C.L.Bai, H.Sagawa, H.Q.Zhang

Beyond mean field model for Gamow-Teller giant resonances and β decay

NUCLEAR STRUCTURE 48Ca, 90Zr, 132Sn, 208Pb; calculated Gamow-Teller (GT) transitions using self-consistent Hartree-Fock (HF) plus charge-exchange subtracted second random phase approximation (SSRPA) model with several Skyrme energy density functions (EDFs); deduced SRPA improves systematically the description of main GT strength distributions in terms of the excitation energy and the peak height, quenching factors.

doi: 10.1393/ncc/i2024-24037-8
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2023LV01      Phys.Rev. C 108, L051304 (2023)

W.-L.Lv, Y.-F.Niu, D.-L.Fang, J.-M.Yao, C.-L.Bai, J.Meng

0νββ-decay nuclear matrix elements in self-consistent Skyrme quasiparticle random-phase approximation: Uncertainty from pairing interaction

doi: 10.1103/PhysRevC.108.L051304
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2023YA02      Phys.Rev. C 107, 014325 (2023)

M.J.Yang, H.Sagawa, C.L.Bai, H.Q.Zhang

Effects of two-particle--two-hole configurations and tensor force on β decay of magic nuclei

RADIOACTIVITY 34Si, 68,78Ni, 132Sn(β-); calculated T1/2, Gamow-Teller strength distribution with respect to daughter nucleus. Self-consistent Hartree-Fock plus subtracted second random-phase approximation (HF+SSRPA) model with Skyrme EDFs (SGII, SAMi, SAMi-T).Comparison to experimental data.

doi: 10.1103/PhysRevC.107.014325
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2022BA38      Chin.Phys.C 46, 114104 (2022)

C.L.Bai, D.L.Fang, H.Q.Zhang, C.L.Bai, D.L.Fang, H.Q.Zhang

Roles of tensor and isoscalar pairing interactions in β-Decay calculations for possible r-process waiting point nuclei with N ∼ 82 and 126

RADIOACTIVITY 120,122,124,126,128,130,132Cd(β-); calculated T1/2 with the self-consistent Hartree-Fock-Bogoliubov (HFB) theory with the proton-neutron quasi-particle random phase approximation (pnQRPA) based on the Skyrme force. Comparison with available data.

doi: 10.1088/1674-1137/ac80ee
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2022LV05      Phys.Rev. C 105, 044331 (2022)

W.L.Lv, Y.F.Niu, D.L.Fang, C.L.Bai

Single-state or low-lying-states dominance mechanism of 2νββ-decay nuclear matrix elements

RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 128,130Te, 136Xe, 150Nd, 238U(2β-); calculated matrix elements, isoscalar pairing strength parameter, Gamow-teller transition amplitudes. Spherical Skyrme HFB + QRPA model. Single-state dominance (SSD) and low-lying-states dominance (LLD) hypothesis. Comparison to experimental values.

doi: 10.1103/PhysRevC.105.044331
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2022YA20      Phys.Rev. C 106, 014319 (2022)

M.J.Yang, C.L.Bai, H.Sagawa, H.Q.Zhang

Gamow-Teller transitions in magic nuclei calculated by the charge-exchange subtracted second random-phase approximation

NUCLEAR STRUCTURE 48Ca, 90Zr, 132Sn, 208Pb; calculated Gamow-Teller (GT) strength distributions as function of excitation energy and peak height; evaluated quenching factors of the Ikeda sum rule due to couplings to two-particle two-hole (2p-2h) configurations, effects of tensor interactions on the excitation energies and the quenching factors of GT strength distributions. Self-consistent Hartree-Fock (HF) plus charge-exchange subtracted second random-phase approximation (SSRPA) calculations with several different Skyrme energy density functions (EDFs). Comparison with experimental data.

doi: 10.1103/PhysRevC.106.014319
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2021WA54      New Journal of Physics 23, 115010 (2021)

X.-Y.Wang, M.D.Frye, Z.Su, J.Cao, L.Liu, D.-C.Zhang, H.Yang, J.M.Hutson, B.Zhao, C.L.Bai

Magnetic Feshbach resonances in collisions of 23Na40K with 40K

ATOMIC PHYSICS 23Na, 40K; measured frequencies; deduced magnetic Feshbach resonances, hyperfine levels.

doi: 10.1088/1367-2630/ac3318
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2021WU12      Phys.Rev. C 104, 054303 (2021)

D.Wu, C.L.Bai, H.Sagawa, S.Nishimura, H.Q.Zhang

β-delayed one-neutron emission probabilities within a neural network model

RADIOACTIVITY Z=2-57(β-n); calculated β--delayed one-neutron emission probabilities P1n using machine learning (ML) technique and feed-forward neural network (FNN) with root mean squared Prop (RMSProp) method; analyzed correlations between P1n, half-lives, Q-values, neutron shell effects, distance from the first β--delayed neutron emitter, and competitions between β--delayed one- and two- neutron emissions P1n and P2n. 109,110,111,112,113,114,115,116Tc, 116,117,118,119,120,121Ru, 118,119,120,121,122,123,124Rh, 121,122,123,124,125,126,127,128Pd, 124,125,126,127,128,129Ag, 127,128,129,130Cd(β-n); 79Cu, 80Zn, 81Ga, 128Pd, 129Ag, 130Ag(β-n); calculated β--delayed one-neutron emission probabilities P1n using ML-FNN techniques, and compared with experimental and evaluated data in literature, and with theoretical calculations using FRDM12+(Q)RPA+HF and RHB+RQRPA approaches. Relevance to r-process nuclei in nucleosynthesis, and waiting-point nuclei at N=50 and N=82.

doi: 10.1103/PhysRevC.104.054303
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2021YA14      Phys.Rev. C 103, 054308 (2021)

M.J.Yang, C.L.Bai, H.Sagawa, H.Q.Zhang

Effects of the Skyrme tensor force on 0+, 2+, and 3- states in 16O and 40C nuclei within the second random-phase approximation

NUCLEAR STRUCTURE 16O, 40Ca; calculated isoscalar and isovector strength distributions and energy moments of the monopole (0+), quadrupole (2+) and octupole (3-) transitions B(E0), B(E2) and B(E3), major 1p-1h and 2p-2h configurations; deduced major impact of tensor force in SGII+Te1 on the coupling between 1p-1h and 2p-2h model spaces. Subtracted second random-phase approximation (SSRPA) method with Skyrme energy density functional. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.054308
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2020WU09      Phys.Rev. C 102, 054323 (2020)

D.Wu, C.L.Bai, H.Sagawa, H.Q.Zhang

Calculation of nuclear charge radii with a trained feed-forward neural network

NUCLEAR STRUCTURE 40,42,44,46,48,50,52Ca, 108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn, 138,140,142,144,146,148,150,152,154Sm, 182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212Pb; calculated nuclear charge radii, correlation between the symmetry energy and charge radii of Ca isotopes, and confirmed this correlation by Skyrme Hartree-Fock-Bogoliubov calculation. A multilayer feed-forward neural network model (ML-FNN).

doi: 10.1103/PhysRevC.102.054323
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2017WU11      Eur.Phys.J. A 53, 183 (2017)

F.Wu, C.L.Bai, J.M.Yao, H.Q.Zhang, X.Z.Zhang

Existence problem of proton semi-bubble structure in the 21+ state of 34Si

NUCLEAR STRUCTURE 34Si, 36S; calculated first proton orbitals, proton sp levels, J, B(E2), proton density distribution vs radius using HF (Hartree-Fock) plus RPA (Random Phase Approximation) based on Skyrme-type interaction; deduced possibility of lower proton density ("bubble") in the center of nucleus.

doi: 10.1140/epja/i2017-12375-5
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2016NI17      Phys.Rev. C 94, 064328 (2016)

Y.F.Niu, G.Colo, E.Vigezzi, C.L.Bai, H.Sagawa

Quasiparticle random-phase approximation with quasiparticle-vibration coupling: Application to the Gamow-Teller response of the superfluid nucleus 120Sn

NUCLEAR STRUCTURE 120Sn; calculated Gamow-Teller strength distributions with and without isoscalar pairing, and their cumulative sums using different configuration spaces, energies and reduced transition probabilities of the lowest phonons of different multipolarities, microscopic structure of the main Gamow-Teller peaks. Self-consistent quasiparticle random-phase approximation (QRPA) plus quasiparticle-vibration coupling (QPVC) model with Skyrme interactions. Comparison with experimental data from (3He, t) and (p, n) reactions.

doi: 10.1103/PhysRevC.94.064328
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2015FU08      Phys.Rev. C 91, 064316 (2015)

Y.Fujita, H.Fujita, T.Adachi, G.Susoy, A.Algora, C.L.Bai, G.Colo, M.Csatlos, J.M.Deaven, E.Estevez Aguado, C.J.Guess, J.Gulyas, K.Hatanaka, K.Hirota, M.Honma, D.Ishikawa, A.Krasznahorkay, H.Matsubara, R.Meharchand, F.Molina, H.Nakada, H.Okamura, H.J.Ong, T.Otsuka, G.Perdikakis, B.Rubio, H.Sagawa, P.Sarriguren, C.Scholl, Y.Shimbara, E.J.Stephenson, T.Suzuki, A.Tamii, J.H.Thies, K.Yoshida, R.G.T.Zegers, J.Zenihiro

High-resolution study of Gamow-Teller excitations in the 42Ca (3He, t) 42Sc reaction and the observation of a "low-energy super-Gamow-Teller state"

NUCLEAR REACTIONS 42Ca(3He, t), E=140 MeV/nucleon; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP facility. 42Sc; deduced levels, J, π, IAS, isospin of excited GT states, L-transfers, B(GT), configurations. Comparison of B(GT) values with those for 44,48Sc, and from 42Ti β+ decay to 42Sc. Isospin assignments made in comparison with results from 42Ca(p, p') reaction. Comparison with shell-model calculations using GXPF1J interaction. 12N, 16F, 40,44Sc; observed peaks from contaminants in the target material, and appropriate corrections applied to triton spectra for 42Sc.

doi: 10.1103/PhysRevC.91.064316
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Data from this article have been entered in the XUNDL database. For more information, click here.

2014BA55      Phys.Rev. C 90, 054335 (2014)

C.L.Bai, H.Sagawa, G.Colo, Y.Fujita, H.Q.Zhang, X.Z.Zhang, F.R.Xu

Low-energy collective Gamow-Teller states and isoscalar pairing interaction

NUCLEAR STRUCTURE 42Ca, 46Ti, 50Cr, 54Fe, 58Ni; calculate neutron pairing gaps, Gamow-Teller (GT) strength distributions and sum rule values for IAR states, energy differences between the lowest GT and IAR states in N=Z+2 nuclei. HFB+QRPA calculations with the Skyrme forces SGII, SGII+Te3, and SAMi. Comparison with experimental values.

doi: 10.1103/PhysRevC.90.054335
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2014FU02      Phys.Rev.Lett. 112, 112502 (2014)

Y.Fujita, H.Fujita, T.Adachi, C.L.Bai, A.Algora, G.P.A.Berg, P.von Brentano, G.Colo, M.Csatlos, J.M.Deaven, E.Estevez Aguado, C.Fransen, D.De Frenne, K.Fujita, E.Ganioglu, C.J.Guess, J.Gulyas, K.Hatanaka, K.Hirota, M.Honma, D.Ishikawa, E.Jacobs, A.Krasznahorkay, H.Matsubara, K.Matsuyanagi, R.Meharchand, F.Molina, K.Muto, K.Nakanishi, A.Negret, H.Okamura, H.J.Ong, T.Otsuka, N.Pietralla, G.Perdikakis, L.Popescu, B.Rubio, H.Sagawa, P.Sarriguren, C.Scholl, Y.Shimbara, Y.Shimizu, G.Susoy, T.Suzuki, Y.Tameshige, A.Tamii, J.H.Thies, M.Uchida, T.Wakasa, M.Yosoi, R.G.T.Zegers, K.O.Zell, J.Zenihiro

Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei

NUCLEAR REACTIONS 42Ca, 46Ti, 50Cr, 54Fe(3He, t), E=140 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced cumulative-sum strengths of the experimental B(GT) values in the final nuclei, two kinds of GT phonon states. GXPF1J, quasi particle random phase approximation (QRPA) framework based on a self-consistent Hartree-Fock mean field with Skyrme interaction calculations, comparison with available data.

doi: 10.1103/PhysRevLett.112.112502
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Data from this article have been entered in the XUNDL database. For more information, click here.

2013MI02      Phys.Rev.Lett. 110, 122501 (2013)

F.Minato, C.L.Bai

Impact of Tensor Force on β Decay of Magic and Semimagic Nuclei

RADIOACTIVITY 34Si, 68,78Ni, 132Sn(β-); calculated T1/2, Q-value, log ft values. Comparison with experimental data.

doi: 10.1103/PhysRevLett.110.122501
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2012MI16      Phys.Rev.Lett. 108, 262503 (2012)

K.Miki, H.Sakai, T.Uesaka, H.Baba, C.L.Bai, G.P.A.Berg, N.Fukuda, D.Kameda, T.Kawabata, S.Kawase, T.Kubo, S.Michimasa, H.Miya, S.Noji, T.Ohnishi, S.Ota, A.Saito, Y.Sasamoto, H.Sagawa, M.Sasano, S.Shimoura, H.Takeda, H.Tokieda, K.Yako, Y.Yanagisawa, R.G.T.Zegers

Identification of the β+ Isovector Spin Monopole Resonance via the 208Pb and 90Zr(t, 3He) Reactions at 300 MeV/u

NUCLEAR REACTIONS 208Pb, 90Zr(t, 3He), E=300 MeV/nucleon. 208Tl, 90Y; measured reaction products; deduced σ(E, θ), isovector spin monopole resonance. Distorted-wave Born approximation calculation, comparison with available data.

doi: 10.1103/PhysRevLett.108.262503
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2382.

2011BA18      Phys.Rev. C 83, 054316 (2011)

C.L.Bai, H.Q.Zhang, H.Sagawa, X.Z.Zhang, G.Colo, F.R.Xu

Spin-isospin excitations as quantitative constraints for the tensor force

NUCLEAR STRUCTURE 90Zr, 208Pb; calculated Gamow-Teller (GT) and charge-exchange spin-dipole (SD) excitation energies, centroid energies. HF+RPA model with Skyrme interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.054316
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2011BA38      Phys.Rev. C 84, 044329 (2011)

C.L.Bai, H.Sagawa, G.Colo, H.Q.Zhang, X.Z.Zhang

Spin-dipole excitations in 16O and tensor correlations

NUCLEAR STRUCTURE 16F, 208Bi; calculated charge-exchange spin-dipole (SD) strength distributions and energies using different interactions. Hartree-Fock (HF) plus self-consistent random-phase approximation (RPA) using Skyrme-type interactions. 16O; investigated effect of tensor force on the charge-exchange SD transition. Role of triplet-even and triplet-odd tensor interactions.

doi: 10.1103/PhysRevC.84.044329
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2010BA22      Phys.Rev.Lett. 105, 072501 (2010)

C.L.Bai, H.Q.Zhang, H.Sagawa, X.Z.Zhang, G.Colo, F.R.Xu

Effect of the Tensor Force on the Charge Exchange Spin-Dipole Excitations of 208Pb

NUCLEAR STRUCTURE 208Pb; calculated charge exchange spin-dipole excitations; deduced tensor correlations, tensor strength parameters, strength distributions. Self-consistent Skyrme hartree-Fock formalism.

doi: 10.1103/PhysRevLett.105.072501
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2010BA26      Nucl.Phys. A834, 65c (2010)

C.L.Bai, H.Q.Zhang, X.Z.Zhang

Tensor Effects on Spin-Dependent Charge-Exchange transitions

NUCLEAR STRUCTURE 208Pb; calculated GT (Gamow-Teller) and SD (Spin-Dipole) transition strength functions.

doi: 10.1016/j.nuclphysa.2010.01.019
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2010BA34      Chin.Phys.Lett. 27, 102101 (2010)

C.-L.Bai, H.-Q.Zhang, X.-Z.Zhang, F.-R.Xu, H.Sagawa, G.Colo

Effect of the Tensor Force on Charge-Exchange Spin-Dependent Multipole Excitations

NUCLEAR STRUCTURE 90Zr; calculated charge-exchange spin-dipole and spin-quadrupole strength functions; deduced RPA tensor correlation shift.

doi: 10.1088/0256-307X/27/10/102101
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2010JI11      Phys.Rev. C 82, 027602 (2010)

H.M.Jia, C.J.Lin, H.Q.Zhang, Z.H.Liu, N.Yu, F.Yang, F.Jia, X.X.Xu, Z.D.Wu, S.T.Zhang, C.L.Bai

Barrier distribution from 9Be+208Pb quasielastic scattering: Breakup effects in the interaction processes

NUCLEAR REACTIONS 208Pb(9Be, 9Be), E=23.9-44.0 MeV; measured particle-spectra, σ(E) for quasielastic scattering; deduced barrier distribution. Comparison with coupled-channel model calculations.

doi: 10.1103/PhysRevC.82.027602
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2010YU02      J.Phys.(London) G37, 075108 (2010)

N.Yu, H.Q.Zhang, H.M.Jia, S.T.Zhang, M.Ruan, F.Yang, Z.D.Wu, X.X.Xu, C.L.Bai

Unusual potential behavior for the weakly bound nucleus 9Be in elastic scattering from 208Pb and 209Bi near the threshold

NUCLEAR REACTIONS 208Pb, 209Bi(9Be, 9Be), E=37-50 MeV; measured reaction products; deduced σ(θ), optical potential parameters.

doi: 10.1088/0954-3899/37/7/075108
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0066.

2009BA17      Phys.Lett. B 675, 28 (2009)

C.L.Bai, H.Sagawa, H.Q.Zhang, X.Z.Zhang, G.Colo, F.R.Xu

Effect of tensor correlations on Gamow-Teller states in 90Zr and 208Pb

NUCLEAR STRUCTURE 90Zr, 208Pb; calculated Gamow-Teller strength distributions including tensor correlation in HF and RPA model. Comparison with data.

doi: 10.1016/j.physletb.2009.03.077
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2009BA19      Phys.Rev. C 79, 041301 (2009)

C.L.Bai, H.Q.Zhang, X.Z.Zhang, F.R.Xu, H.Sagawa, G.Colo

Quenching of Gamow-Teller strength due to tensor correlations in 90Zr and 208Pb

NUCLEAR STRUCTURE 90Zr, 208Pb; calculated Gamow-Teller (GT) and spin-quadrupole (SQ) strength distributions. Random-phase approximation (RPA) and Hartree-Fock (HF) calculations.

doi: 10.1103/PhysRevC.79.041301
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2009WU01      Chin.Phys.Lett. 26, 022503 (2009)

Z.-D.Wu, C.-J.Lin, H.-Q.Zhang, Z.-H.Liu, F.Yang, G.-P.An, C.-L.Zhang, G.-L.Zhang, H.-M.Jia, X.-X.Xu, C.-L.Bai, N.Yu, F.Jia

Optical Potential Parameters for Halo Nucleus System 6He+12C from Transfer Reaction 11B(7Li, 6He)12C

NUCLEAR REACTIONS 11B(7Li, 6He), E=18.3, 28.3 MeV; analyzed σ(θ). 12C(6He, 7Li); deduced optical potential parameters.

doi: 10.1088/0256-307X/26/2/022503
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetS0056.

2008AN17      Chin.Phys.Lett. 25, 4237 (2008)

G.-P.An, C.-J.Lin, H.-Q.Zhang, Z.-H.Liu, F.Yang, G.-L.Zhang, C.-L.Zhang, Z.-D.Wu, F.Jia, H.-M.Jia, X.-X.Xu, C.-L.Bai, N.Yu

Optical Potential Parameters of Weakly Bound Nuclear System 17F+13C

NUCLEAR REACTIONS 16O(14N, 14N), (14N, 13C), E=76.2, 57.0 MeV; measured σ(θ). Compared results to model calculations.

doi: 10.1088/0256-307X/25/12/014
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2008JI03      Chin.Phys.Lett. 25, 2834 (2008)

H.-M.Jia, C.-J.Lin, H.-Q.Zhang, Z.-H.Liu, F.Yang, F.Jia, C.-L.Zhang, G.-P.An, Z.-D.Wu, X.-X.Xu, C.-L.Bai, N.Yu

Surface Diffuseness Anomaly in 16O+208Pb Quasi-elastic Scattering at Backward Angle

NUCLEAR REACTIONS 208Pb(16O, 16O'), E=40.50-80.25 MeV; measured quasi=elastic scattering excitation function at backward angles.

doi: 10.1088/0256-307X/25/8/028
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2007ZH02      Chin.Phys.Lett. 24, 397 (2007)

G.-L.Zhang, H.-Q.Zhang, Z-H.Liu, C.-L.Zhang, C.-J.Lin, F.Yang, G.-P.An, H.-M.Jia, Z.-D.Wu, X.-X.Xu, C.-L.Bai, N.Yu

Calculation of Interaction Potentials between Spherical and Deformed Nuclei

NUCLEAR REACTIONS 154Sm(32S, X), E(cm)=100-130 MeV; calculated interaction potentials, fusion σ, dependence on deformation and orientation. Double folding model.

doi: 10.1088/0256-307X/24/2/026
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